The 85 is a T-1 3/4 standard glass wedge base incandescent lamp designed for low-power indicator and lighting applications. It is rated at 28.0 volts with a current draw of 0.040 amperes (±10%) and features a C-2F filament type. The lamp produces 0.300 MSCP (mean spherical candlepower) with ±25% tolerance and delivers 3.77 lumens (±25%), providing reliable illumination for instrument panels and control systems. With an average life of 25,000 hours, this lamp offers extended service intervals and is commonly used in aerospace, automotive, and industrial control applications where long-life, low-power indicator lighting is required.